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Transcript of 1 R. TANDON. 2 ECG, accurate physical examination and radiology form the tripod on which rests the...
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R. TANDON
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ECG, accurate physical examination and radiology form the tripod on which rests the clinical diagnosis in Ped. Card. Omission of, unfamiliarity with or misinterpretation of any of these three tools spells disaster.
Alexander S. Nadas
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Investigations are complimentary to each other in helping reach an accurate clinical diagnosis.
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ECG is the quickest, safest, least expensive and most widely available cardiac investigative tool.
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Electrocardiogram : Utility Identify cardiac malposition. Atrial and ventricular hypertrophy
- specific dx.- assess severity
Pericard. and myocard. disease. Electrolyte imbalance. Atriovent. & intravent conduction
abn. Arrhythmias.
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In congenital heart disease interpretation of the ECG is useful only on the patient’s bedside.
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CONGENITAL HEART DISEASECONGENITAL HEART DISEASE
ECG Crucial data Age Cyanotic or acyanotic Heart size – x-ray
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Electrocardiogram
At Birth : RAD (+90 to +120) RVH
At 2 to 5 years :-Normal axis (+30 to +75)Normal LV dominanceTransitional period (Unstable ECG)
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CONGENITAL HEART DISEASE
CLASSIFICATION
L R shunts Obstr. lesions Cyanotic pts
• Atrial level Right sided With PS• Vent. Level Left sided With PAH• PA level
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CONGENITAL HEART DISEASE
CYANOTIC : Subgroups PS, no VSD, R to L at atrial level PS with VSD (TOF physiology). pulm flow (Transposition physiol.) PA pr , pulm. flow (Eisenmenger
physiol). Pulm. ven. obst. PA pr. normal, No PS, No PAH.
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CONGENITAL HEART DISEASE
L to R Shunts : Atrial levelQRS axis-30 to +150 Atrial septal
defect 2°QRS axis-15 to -120 Atrial septal defect
1°Atrial septal defect 2° - rsR1 – V1 - 95%RVH PAHAtrial septal defect 1° - right, left, right
+ left, V.H.
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CONGENITAL HEART DISEASE
L to R Shunts : Vent. & PA levelNormal axis.L.V. dominance or LVH.RVH PS or PAH.PDA : Left ventricular hypertrophy
with ST and T changes of ischaemia indicates associated Aortic stenosis or LVEFE.
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CONGENITAL HEART DISEASE
Obstructive lesions :-RVH : Right sided lesion (PS)
(Except in newborns and neonates).Left ventricular hypertrophy – left
sided lesion (Aortic stenosis, C of A0)ST and T changes in Coarct. of A0
indicates associated Aortic stenosis or LVEFE.
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CONGENITAL HEART DISEASECONGENITAL HEART DISEASE
Obstructive lesions :-As a rule severity of RVH or LVH is
consistent with the severity of obstruction.
Presence of ST and T changes.Severe obstr.Myocardial dis.
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CONGENITAL HEART DISEASE
Cyanotic : QP, No VSD, CE+ (R L at atrial level)
Pure PS - SevereEbsteins anomaly.
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CONGENITAL HEART DISEASE
Cyanotic : TOF physiology (VSD + PS)
Clinical : No CE, S1 normal.S2 single, eject syst.
murmur.X-ray : No cardiomegaly.
Ischaemic lungs. Ao large.
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CONGENITAL HEART DISEASE
RAD RVH RAD LVH LAD LVH LAD RVH
TOF RV TA AVC
DORV SV SV SV
TGASV
DORV (Small VSD)
DORV (Rare)
DORV(Rare)
Cyanotic : TOF physiology
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CONGENITAL HEART DISEASE
Cyanotic : TOF physiologyLAD or RADEquiphasic complexes across.precordium, q may be absent. Single ventricle.
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CONGENITAL HEART DISEASE
RAD RVH
RAD LVH
LAD LVH LAD RVH
TGA RV TA SV
TAPVC SV SV AVC
DORVPTA
- RVAVC
-
SV - - -
Cyanotic : TGA physiologyCE + Congestive cardiac failure + Age - NB
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CONGENITAL HEART DISEASECONGENITAL HEART DISEASE
Cyanotic Patients : Eisenmenger Phys.
RAD RVH RAD LVH LAD LVH LAD RVH
VSD, PDA, APW
RV TA AVC
TGA Physiol.
SV SV SV
ASD 2° - - -
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CONGENITAL HEART DISEASECONGENITAL HEART DISEASE
Cyanotic Patients : Pulm. Ven. Obstru.
‘P’ Pulm, RAD, RVH.Hypoplastic left heartTAPVC with PV obstru.
(Xray – Diagnostic)
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CONGENITAL HEART DISEASECONGENITAL HEART DISEASE
Cyanotic : Miscellaneous(No PS, normal PA pr).RAD RVH - TA PVC.LAD RVH - Single atriumNormal ECG - SVC to LA.
Pulm. AV fistula.
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SPOT DIAGNOSIS BY ECG
ALCAPA Ebstein’s anomaly Ventricular inversion (l-loop) Situs inversus Hypertrophic cardiomyopathy
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Arrhythmias and conduction defects suggest specific congenital cardiac anomalies
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SSS ASD in Holt Oram synd. Sinus venosus ASD. AV canal defects Ebstein’s anomaly. Asplenia, polysplenia synd.
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Narrow QRS tachycardia
Ebstein’s disease. Cong. CTGA LV – RA shunt AV canal defects Older pts of TA and ASD 2°.
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Wide QRS tachycardia
ALCAPA Coron. arterio-ven. fistula Arrhythmogenic RV dysplasia.
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Atrioventricular conduction defects and pre-excitation syndrome Ebstein’s disease. Cong. CTGA
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Age : 3 yrs, acyanotic.
Dx. : PDA, No PAHShunt 2:1.
X-ray : No CE, Ao+, MPA +Vasc : N to +.
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Age : 2 m, cyanotic
Dx. : Transposition physiology
X-ray : CE ++, Vasc. ++.
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Age : 2 yrs, cyanotic
Dx. : Fallots’ physiology
X-ray : No CE, Vasc. , Ao+.
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Age : 12 yrs, cyanotic
Dx. : Eisenmenger physiology
X-ray: CE +, Vasc : Prominent hilar vasc.,
Ischaemic periphery.
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CONGENITAL HEART DISEASECONGENITAL HEART DISEASE
Electrocardiogram provides diagnostic help only on the bedside of the patient from whom the ECG has been taken.
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